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WRAIGHT Peter, ROSCOE Bradley A, THORNTON James: Outil de fond de trou à porosité à neutrons offrant une précision optimisée et des effets lithologiques réduits, Neutron porosity downhole tool with improved precision and reduced lithology effects. Schlumberger Canada, Schlumberger Technology, Prad Research And Development, Services Petroliers Schlumberger, Schlumberger Holding, WRAIGHT Peter, ROSCOE Bradley A, THORNTON James, FONSECA Darla P, October 27, 2011: WO/2011/133363 (1 worldwide citation)

Systems and methods for neutron porosity well logging with high precision and reduced lithology effects are provided. In accordance with an embodiment, a downhole neutron porosity tool may include a neutron source, a neutron monitor, a neutron detector, and data processing circuitry. The neutron sou ...


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Shampine Rod, Groves Joel L, Durkowski Anthony, Vallee Etienne, Wraight Peter: Apparatus and method for well services fluid evaluation using x-rays. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, Shampine Rod, Groves Joel L, Durkowski Anthony, Vallee Etienne, Wraight Peter, CATE David, March 20, 2008: WO/2008/032265 (1 worldwide citation)

A method and apparatus for determining the density and phase fractions of well services fluids is shown including an x-ray generator, a sample cell, and a radiation detector. Radiation is passed through the sample cell and fluid and the attenuated radiation signal is used to evaluate the fluid. In o ...


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Becker Arthur J, Wraight Peter D: Apparatus and method for measuring formation density in rugose boreholes. Schlumberger Technology, Schlumberger Canada, Schlumberger, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Overseas, Petroleum Research And Development, Schlumberger Surenco, Becker Arthur J, Wraight Peter D, sSMITH Keith, February 26, 1998: WO/1998/008116

A method and apparatus for determining the density of a formation traversed by a borehole operates by: (i) lowering into the borehole a sonde having a resilient member, the member being equipped with a backscatter detection device having a photon source, a detector, and a substantially small contact ...


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Wraight Peter, Griffiths Roger, Stephenson Kenneth: Measuring mud flow velocity using pulsed neutrons. Services Petroliers Schlumberger, Schlumberger Technology, Schlumberger Holdings, Schlumberger Canada, Petroleum Research And Development, Schlumberger Overseas, Schlumberger Oilfield Assistance, Schlumberger Surenco, Schlumberger Services, Schlumberger Seaco, Wraight Peter, Griffiths Roger, Stephenson Kenneth, RAYBAUD Hélène, July 15, 2004: WO/2004/059125

The invention relates to methods and apparatus for determining downhole mud flow rates and other downhole parameters. A method for determining a downhole parameter includes operating a pulsed neutron generator (6), pulsing the pulsed neutron generator (6) off, detecting a substantially unactivated d ...


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Fujisawa Go, Mullins Oliver C, Wraight Peter David, Groves Joel Lee, Reid Lennox, Chen Felix, Corris Gary, Song Yi Qiao: Method and apparatus for in-situ side-wall core sample analysis. Services Petroliers Schlumberger, Schlumberger Canada, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, Fujisawa Go, Mullins Oliver C, Wraight Peter David, Groves Joel Lee, Reid Lennox, Chen Felix, Corris Gary, Song Yi Qiao, LOCCISANO Vincent, June 21, 2007: WO/2007/070748

A wireline-conveyed side-wall core coring tool (100) for acquiring aside-wall core from a geological formation for performing in-situ side-wall core analysis The coring tool (100) has a core analysis unit (131) operable to measure geophysical properties of an acquired side-wall core. The measured ge ...


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CHIROVSKY Leo, DURKOWSKI Anthony, HILES Kevin, REIJONEN Jani, SIMON Matthieu, WRAIGHT Peter: DOUILLE ISOLANTE POUR HAUTE TENSION POUR DIAGRAPHIE NUCLÉAIRE, HIGH VOLTAGE INSULATING SLEEVE FOR NUCLEAR WELL LOGGING. SCHLUMBERGER CANADA, SERVICES PETROLIERS SCHLUMBERGER, SCHLUMBERGER HOLDINGS, Schlumberger Technology, PRAD RESEARCH AND DEVELOPMENT, CHIROVSKY Leo, DURKOWSKI Anthony, HILES Kevin, REIJONEN Jani, SIMON Matthieu, WRAIGHT Peter, BERMAN Jeremy, August 16, 2012: WO/2012/109247

A well logging instrument includes an instrument housing to traverse a wellbore penetrating subsurface formations. An electrically operated energy source that emits ionizing radiation is disposed inside the housing. An insulating sleeve is disposed between the energy source and an interior wall of t ...


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MATHIEU Gilles, LANG Kent, CHAHBANDOUR John, WRAIGHT Peter, BANAS Roland, GRAU Jim A: SYSTÈMES ET PROCÉDÉS DEXTRACTION SOUTERRAINE, MINING SYSTEMS AND METHODS. SCHLUMBERGER CANADA, SERVICES PETROLIERS SCHLUMBERGER, SCHLUMBERGER HOLDINGS, Schlumberger Technology, PRAD RESEARCH AND DEVELOPMENT, MATHIEU Gilles, LANG Kent, CHAHBANDOUR John, WRAIGHT Peter, BANAS Roland, GRAU Jim A, TILLMAN Jeremy, June 7, 2012: WO/2012/075365

The present invention provides systems and methods capable of improving the efficiency and effectiveness of leaching operations. In one embodiment, the present invention may utilize a coiled tubing directional drilling system capable of treating interior portions of the heap/formation. In one embodi ...


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Groves Joel Lee, Vallee Etienne, Wraight Peter: Apparatus and method for fluid density determination. Schlumberger Technology, Services Petroliers Schlumberger, Schlumberger Canada, Schlumberger Holdings, Prad Research And Development, Groves Joel Lee, Vallee Etienne, Wraight Peter, SINGH Karan, December 6, 2007: WO/2007/138402

A fluid density determination apparatus and method comprising an X-ray generator emitting a high energy radiation signal and a low energy radiation signal; a sample cell housing a sample of interest and at least one of the high energy and low energy radiation signals being directed through the sampl ...